Paint or protective composition.



erases... 7. 9, 2

110129358. Y Patented Kay26,1903.

' UNITED STATES PATENT OFFICE.

EMILE GUSTAVE BER TRAND, OF PARIS, FRANCE.

PAINT OR PROTECTIVE COMPOSITION.

c p Mm/wJ L srncmoa'non forming part of Letters Patent No. 729,258, dated May 26, 1903.

, Application filed December 26, 1902. Serial Io. 136,717. (No specimens.) 7 W 6 To all whom it may concern: pearance and fluidity. It is applied out- Be it known that I, EMILE GUSTAVE BER- wardly, either like whitewash or grained or TRAND, architect, a citizen of the Republic of with a pad or dabber. It may be packed in France, and a resident of 22 Rue Legendre, a box, tub, or barrel.

Paris, France, have invented a certain new The compositionowesits particular feature and useful Improved Paintor Protective Comto the presence of the bLue coloring-matter, position, of which the following is a specificawhich stops the heat-rays'of the sun, and the tion. proportion in which this blue coloring-matter The present invention relates to a paint or is mixed with the whitening, &c., allows the 10 composition and is destined mainly for the light-rays to pass almost entirely. 5 painting of glass houses and windows, its spe- The composition is of course principally incial property consisting in preventing to a tended for use in summer as a protection great extent the passage of heat-rays, while against the too-vigorous efli'ects of the suns at the same time letting the light-rays pass. rays. x 5 The paint not only prevents the internal It may-be stated that if the paint is applied air, say, of afigemhonse provided with gla ss at the commencement of the hot weather the window-s coa e with this composition from various atmospheric disturbances which 00- reaching too high a temperature, but also cur-for instance, rain and hailgradua1ly lowers the temperature with regard to the outcause it to disappear as the season advances, :0 side air. so that by the time winter arrives the paint,

A kilogram of the composition is preferably if conveniently thick at first, will probably composed in the following manner: m be quite removed, and it will be suflicient to five hundred and fifty grams; renew it the following summer. Spanisig white, owe, two hun red and Having now particularly described and as- 25 mg tyve grams; lue colorin -mat (in certained the nature of mysaid invention and the form of powder, paste, or crystalj sixty in what manner the same is to be performed, m gi jighty five grams; m ten I declare that what I claim is grams; QWWD grams; total, A paint or composition for the protection one thousan grams. tis evident that these of glass houses and for other purposes, con- 30 proportions are not arbitrary and that they sisting of amixture of water, whitening, blue can be modified according to whether a paint coloring-matter, oil, alum and silicate of potmore or less transparent or more or less adash, substantially as described.

hesive, &c., is required. In testimony whereof I have signed my The oil which I prefer to use is lg'nseeg-gg' name to this specification in the presence of 5 The blue coloring-matter may beo t e in 5 two subscribing witnesses.

f known as p orfzrnssian blue and it may be a u no coloring-ma er EMILE (IUSTAVE BERTRAID' in powder or paste form. Witnesses:

The composition is prepared and applied MAURICE DETOUR,

: 0 like ordinary paint, which it resembles in ap- Eowxm) P. MACLEAN.

'P olwet gm 1/126 {ifflaM M A 

